/*
 * Copyright 2011 Sriseshaa Technologies
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.sriseshaa.struts2.spring;

import java.lang.reflect.Field;

import org.springframework.context.ApplicationContext;

import com.opensymphony.xwork2.Action;
import com.sriseshaa.struts2.spring.annotation.InjectBean;
import com.sriseshaa.struts2.spring.cache.AnnotatedField;
import com.sriseshaa.struts2.utils.CommonUtils;

/**
 * @author Arunkumar Subramaniam
*/

public class SpringBeanInject {
	private ApplicationContext applicationContext;

	public SpringBeanInject(ApplicationContext applicationContext) {
		this.applicationContext = applicationContext;

	}
	
	public void injectBean(Action action, AnnotatedField annoField) throws IllegalArgumentException, IllegalAccessException {
		Field injectField=annoField.getField();
		InjectBean annoInject=annoField.getAnnotation();
		String beanName = CommonUtils.CorrectNull(annoInject.name());
		Object beanObj = null;
		if (beanName.equals("")) {
			beanObj = applicationContext.getBean(injectField.getType());
		} else {
			beanObj = applicationContext.getBean(beanName);
		}
		if (beanObj != null) {
			boolean wasAccessible = injectField.isAccessible();
			injectField.setAccessible(true);
			injectField.set(action, beanObj);
			injectField.setAccessible(wasAccessible);
		}
		
	}

}
